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All results from a given calculation for CH3CH2O (Ethoxy radical)

using model chemistry: ROHF/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at ROHF/6-31G**
 hartrees
Energy at 0K-153.468887
Energy at 298.15K-153.474072
HF Energy-153.468887
Nuclear repulsion energy74.258623
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at ROHF/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3256 2783 40.33      
2 A' 3188 2724 14.62      
3 A' 3163 2703 36.18      
4 A' 1626 1390 3.59      
5 A' 1581 1351 8.71      
6 A' 1555 1329 13.66      
7 A' 1517 1296 8.17      
8 A' 1201 1027 8.85      
9 A' 1161 992 32.42      
10 A' 962 822 2.35      
11 A' 456 390 6.62      
12 A" 3268 2793 46.33      
13 A" 3198 2733 19.03      
14 A" 1612 1377 1.91      
15 A" 1373 1173 0.83      
16 A" 938 802 0.19      
17 A" 312 266 18.13      
18 A" 209 178 4.88      

Unscaled Zero Point Vibrational Energy (zpe) 15287.4 cm-1
Scaled (by 0.8546) Zero Point Vibrational Energy (zpe) 13064.6 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at ROHF/6-31G**
ABC
1.29566 0.32331 0.28585

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.048 -0.570 0.000
C2 0.000 0.531 0.000
O3 -1.302 0.052 0.000
H4 2.048 -0.146 0.000
H5 0.941 -1.197 0.879
H6 0.941 -1.197 -0.879
H7 0.099 1.176 0.872
H8 0.099 1.176 -0.872

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.51982.43061.08611.08471.08472.16952.1695
C21.51981.38752.15742.15512.15511.08901.0890
O32.43061.38753.35602.71382.71381.99701.9970
H41.08612.15743.35601.76051.76052.51132.5113
H51.08472.15512.71381.76051.75742.51773.0665
H61.08472.15512.71381.76051.75743.06652.5177
H72.16951.08901.99702.51132.51773.06651.7440
H82.16951.08901.99702.51133.06652.51771.7440

picture of Ethoxy radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 113.369 C1 C2 H7 111.460
C1 C2 H8 111.460 C2 C1 H4 110.656
C2 C1 H5 110.562 C2 C1 H6 110.562
O3 C2 H7 106.872 O3 C2 H8 106.872
H4 C1 H5 108.385 H4 C1 H6 108.385
H5 C1 H6 108.207 H7 C2 H8 106.408
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.350      
2 C 0.069      
3 O -0.348      
4 H 0.110      
5 H 0.127      
6 H 0.127      
7 H 0.132      
8 H 0.132      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.856 0.659 0.000 1.970
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.221 0.099 0.000
y 0.099 -18.778 0.000
z 0.000 0.000 -17.978
Traceless
 xyz
x -3.843 0.099 0.000
y 0.099 1.321 0.000
z 0.000 0.000 2.522
Polar
3z2-r25.044
x2-y2-3.443
xy0.099
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 50.795
(<r2>)1/2 7.127